WO2008061895A3 - Granules of metals and metal oxides - Google Patents

Granules of metals and metal oxides Download PDF

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Publication number
WO2008061895A3
WO2008061895A3 PCT/EP2007/062069 EP2007062069W WO2008061895A3 WO 2008061895 A3 WO2008061895 A3 WO 2008061895A3 EP 2007062069 W EP2007062069 W EP 2007062069W WO 2008061895 A3 WO2008061895 A3 WO 2008061895A3
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WO
WIPO (PCT)
Prior art keywords
nonoxidic
oxidic
metal compounds
granules
weight
Prior art date
Application number
PCT/EP2007/062069
Other languages
French (fr)
Other versions
WO2008061895A2 (en
Inventor
Monika Oswald
Klaus Deller
Tassilo Moritz
Manfred Nebelung
Original Assignee
Evonik Degussa Gmbh
Fraunhofer Ges Forschung
Monika Oswald
Klaus Deller
Tassilo Moritz
Manfred Nebelung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Evonik Degussa Gmbh, Fraunhofer Ges Forschung, Monika Oswald, Klaus Deller, Tassilo Moritz, Manfred Nebelung filed Critical Evonik Degussa Gmbh
Priority to EP07847127A priority Critical patent/EP2084107A2/en
Priority to JP2009537597A priority patent/JP2010510162A/en
Priority to US12/515,751 priority patent/US20100048376A1/en
Publication of WO2008061895A2 publication Critical patent/WO2008061895A2/en
Publication of WO2008061895A3 publication Critical patent/WO2008061895A3/en

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    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/34—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of sprayed or atomised solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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  • Compositions Of Oxide Ceramics (AREA)
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Abstract

Process for preparing granules of oxidic or nonoxidic metal compounds, characterized in that a dispersion which comprises water, oxidic or nonoxidic metal compounds and at least one dispersant is spray-dried, - where the proportion of oxidic or nonoxidic metal compounds is 40 to 70% by weight and the sum of the proportions of water and the particles is at least 70% by weight and - the particles have a BET surface area of 20 to 150 m2/g and a median of the particle size of less than 100 nm, - where the dispersant is present in the dispersion with a proportion of 0.25 to 10% by weight based on the oxidic or nonoxidic metal compounds and - where the spray-drying is performed by atomization with air in the cocurrent principle or fountain principle, and an air inlet temperature of 170 to 300°C and an air outlet temperature of 90 to 130°C are selected.
PCT/EP2007/062069 2006-11-24 2007-11-08 Granules of metals and metal oxides WO2008061895A2 (en)

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EP07847127A EP2084107A2 (en) 2006-11-24 2007-11-08 Granules of metals and metal oxides
JP2009537597A JP2010510162A (en) 2006-11-24 2007-11-08 Metal and metal oxide granules
US12/515,751 US20100048376A1 (en) 2006-11-24 2007-11-08 Granules of metals and metal oxides

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DE102006055975.4 2006-11-24

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DE102008039668B4 (en) * 2008-08-26 2013-03-28 H.C. Starck Gmbh Valve metal oxide formulation and process for its preparation
JP5376292B2 (en) * 2008-11-07 2013-12-25 株式会社豊田中央研究所 Colloidal solution of metal compound and method for producing the same
JP5532199B2 (en) * 2008-11-07 2014-06-25 株式会社豊田中央研究所 Colloidal solution of metal compound and method for producing the same
US11236002B2 (en) 2015-12-18 2022-02-01 Heraeus Quarzglas Gmbh & Co. Kg Preparation of an opaque quartz glass body
KR20180095622A (en) 2015-12-18 2018-08-27 헤래우스 크바르츠글라스 게엠베하 ＆ 컴파니 케이지 Manufacture of Silica Glass Products from Molten Crucibles Made of Refractory Metals
US11492285B2 (en) 2015-12-18 2022-11-08 Heraeus Quarzglas Gmbh & Co. Kg Preparation of quartz glass bodies from silicon dioxide granulate
TWI720090B (en) 2015-12-18 2021-03-01 德商何瑞斯廓格拉斯公司 Preparation of carbon-doped silicon dioxide granulate as an intermediate in the preparation of quartz glass
CN108698885A (en) 2015-12-18 2018-10-23 贺利氏石英玻璃有限两合公司 The promotion of silicone content in prepared by quartz glass
US10618833B2 (en) 2015-12-18 2020-04-14 Heraeus Quarzglas Gmbh & Co. Kg Preparation of a synthetic quartz glass grain
TWI813534B (en) 2015-12-18 2023-09-01 德商何瑞斯廓格拉斯公司 Preparation of quartz glass bodies with dew point monitoring in the melting oven
EP3390304B1 (en) 2015-12-18 2023-09-13 Heraeus Quarzglas GmbH & Co. KG Spray granulation of silicon dioxide in the production of quartz glass
JP7048053B2 (en) 2015-12-18 2022-04-05 ヘレウス クワルツグラス ゲーエムベーハー ウント コンパニー カーゲー Preparation of quartz glass in a multi-chamber furnace
WO2017103153A1 (en) 2015-12-18 2017-06-22 Heraeus Quarzglas Gmbh & Co. Kg Glass fibers and preforms made of quartz glass having low oh, cl, and al content
CN117858856A (en) * 2021-08-25 2024-04-09 义获嘉伟瓦登特公司 Method for producing zirconia particles

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EP0657511A1 (en) * 1993-12-11 1995-06-14 KRÜGER GmbH & CO. KG Pigment granule for coloring building materials
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KR20090082423A (en) 2009-07-30
US20100048376A1 (en) 2010-02-25
DE102006055975A1 (en) 2008-05-29
JP2010510162A (en) 2010-04-02
TW200846301A (en) 2008-12-01
WO2008061895A2 (en) 2008-05-29

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